Recently, QOILTECH successfully deployed its CatLiD-III high-shock-resistance near-bit + resistivity geosteering combination in two consecutive shale oil and tight oil wells. The solution fully replaced rotary steerable operations, achieved a 100% reservoir encounter rate, and delivered customers a more cost-effective domestic alternative.

Both wells were horizontal development wells. Prior to drilling, QOILTECH team worked closely with the client's expert team to refine the operation plan and establish a comprehensive risk management mechanism, ensuring smooth project execution.


Four Key Advantages!
01. Significant Cost Advantage
     ● Instrument operation costs reduced by over 50% compared with rotary steerable systems, helping clients cut costs and boost efficiency.

02. Strong Reliability
     ● Total operation time: 380 hours; circulation time: 145 hours; drilled footage: 1,510 m.
     ● Near-bit + resistivity combination operated stably throughout.

03. Accurate Reservoir Identification
     ● Clear gamma-ray contrast between target reservoir and surrounding formations.
     ● Distinct boundary recognition and intuitive in/out layer trends.

     ● Reliable support for precise geosteering decisions.

04. High-Efficiency Command Execution
     ● Over 95 trajectory adjustment commands executed.
     ● Rapid response with 100% success rate.

     ● Fully meets the demand for frequent trajectory optimization in complex reservoirs.

Operation real-time curves (left: azimuthal gamma, right: resistivity).

The successful application of the CatLiD-III near-bit + resistivity combination not only highlights the excellent performance of QOILTEHC geosteering technology in complex geological conditions, but also delivers tangible cost savings and efficiency gains for customers without compromising operation quality. 

QOILTECH will continue to drive domestic substitution through technological innovation, providing customers with lower-cost, stable, and high-efficiency geosteering solutions.